Physics ยท General Awareness

Physics Measuring Instruments

1,180 Questions

Physics measuring instruments are essential tools used to measure various physical quantities. This topic covers devices like hygrometers, oscilloscopes, and sphygmomanometers. It is a highly scoring section in general science and general awareness examinations.

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Physics Measuring Instruments Questions

Multiple choice

Which instrument is commonly used to measure the salinity of seawater?

  1. Salinometer

  2. Current meter

  3. Thermistor

  4. Echosounder
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Salinometers measure the salinity of seawater, which is a crucial parameter for understanding ocean circulation patterns and water mass characteristics.

Multiple choice

Which instrument is commonly used to measure the concentration of nutrients in seawater?

  1. Nutrient analyzer

  2. Current meter

  3. Salinometer

  4. Thermistor
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Nutrient analyzers measure the concentration of nutrients, such as nitrates and phosphates, in seawater, providing insights into marine productivity and ecosystem dynamics.

Multiple choice

Which of the following is NOT a common type of sensor used in aircraft avionics systems?

  1. Accelerometer

  2. Gyroscope

  3. Magnetometer

  4. Barometer
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Barometer is not commonly used as a sensor in aircraft avionics systems.

Multiple choice

Which of the following is a tool used to measure dry ingredients?

  1. Measuring Cup

  2. Measuring Spoon

  3. Kitchen Scale

  4. Rolling Pin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A measuring cup is a kitchen tool used to measure dry ingredients such as flour, sugar, and rice.

Multiple choice

Which kitchen tool is used to measure liquid ingredients?

  1. Measuring Cup

  2. Measuring Spoon

  3. Kitchen Scale

  4. Rolling Pin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A measuring cup is a kitchen tool used to measure liquid ingredients such as water, milk, and oil.

Multiple choice

Which kitchen tool is used to measure small amounts of ingredients, such as spices and herbs?

  1. Measuring Cup

  2. Measuring Spoon

  3. Kitchen Scale

  4. Rolling Pin
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A measuring spoon is a kitchen tool used to measure small amounts of ingredients, such as spices and herbs.

Multiple choice

Which instrument is commonly used in astrometry to measure the positions of stars?

  1. Telescope

  2. Spectrograph

  3. Interferometer

  4. Radio telescope
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Telescopes, equipped with specialized instruments, are used to accurately measure the positions of stars and other celestial objects.

Multiple choice

What is a sphygmomanometer?

  1. A device used to measure blood pressure

  2. A device used to measure heart rate

  3. A device used to measure blood oxygen levels

  4. A device used to measure body temperature
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A sphygmomanometer is a device used to measure blood pressure.

Multiple choice

How is blood pressure measured?

  1. With a sphygmomanometer and a stethoscope

  2. With a blood pressure monitor

  3. With an electrocardiogram (ECG)

  4. With an echocardiogram
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Blood pressure is measured with a sphygmomanometer and a stethoscope.

Multiple choice

Which of the following instruments is commonly used in astronomical observatories?

  1. Telescope

  2. Microscope

  3. Spectrometer

  4. Barometer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Telescopes are commonly used in astronomical observatories to magnify distant objects and collect light from them.

Multiple choice

Which of the following technologies is used to monitor blood sugar levels in diabetic patients?

  1. Continuous glucose monitor

  2. Insulin pump

  3. Blood glucose meter

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All of the above technologies are used to monitor blood sugar levels in diabetic patients.

Multiple choice

Which of the following is NOT a common type of environmental sensor?

  1. Temperature sensor

  2. pH sensor

  3. Humidity sensor

  4. Motion sensor
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Motion sensors are typically not used in environmental monitoring, as they are designed to detect movement and are not specific to environmental parameters.

Multiple choice

What was the name of the instrument used by Varahamihira to determine the direction of the wind?

  1. Anemometer

  2. Windsock

  3. Weather vane

  4. Hygrometer
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Varahamihira used a weather vane to determine the direction of the wind.

Multiple choice

Which of the following is NOT a common type of environmental monitoring sensor?

  1. Temperature sensor

  2. Humidity sensor

  3. Motion sensor

  4. pH sensor
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Motion sensors are not typically used in environmental monitoring, as they are primarily employed for security purposes.

Multiple choice

What is the science of measurement called?

  1. Metrology

  2. Inspection

  3. Calibration

  4. Testing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Metrology is the science of measurement, and it deals with the development of standards, methods, and instruments for measuring physical quantities.